Beyond security, black box software testing, mclean, virginia. Its a centralized system that monitors and control industrial processes that exist in the physical. Fuzzing framework sulley is a fuzzer development and fuzz testing framework consisting of multiple extensible components. A modbustcp fuzzer for testing internetworked industrial. However, in the case of scada systems, the use of proprietary protocols makes it difficult to apply existing fuzz testing techniques as they work best when the protocol semantics are known. Scada specific helper routines including a dnp3 block encoder. Sulley watches the network and methodically maintains records. This is a sulley internal web server that shows us the fuzzing process. A purepython fully automated and unattended fuzzing framework. After enumerating all those i will talk about the scada fuzzer and the framework that has been worked on and how that can be used to determine the flaws in the implementation of various software. Sulley is a fuzzer development and fuzz testing framework consisting of multiple extensible components. Most plcs offer the possibility to configure and program them via a. Introduction to scada networks overview scada protocols modbus dnp3 iccp. Propfuzzan itsecurity fuzzing framework for proprietary ics.
You have found the repository of def con 15 content, including video and audio of the talks, slides, white papers, extras, music, press and much more. A modbustcp fuzzer for testing internetworked industrial systems artemios g. A common application scenario is a supervisory control and data acquisition scada system collecting information from remote terminal units. Fuzz testing is a popular security evaluation technique in which hostile inputs are crafted and passed to the target software in order to reveal bugs. A modbustcp fuzzer for testing internetworked industrial systems.
Sulley imho exceeds the capabilities of most previously published fuzzing technologies, commercial and public. Most software that i have seen have the version set to 03 the reserved byte is 00 finally the length varies based on the other layers information. Scada supervisory control and data acquisition is a type of industrial control system ics. Stateoftheart generationbased fuzzers such as sulley 3 and peach 11. Peachfuzzer 9, sulley 10, spike 11, profuzz 12 etc. This tool can be used to assess the software out there by various vendors. A fork and successor of the sulley fuzzing framework jtpereydaboofuzz. Identifying vulnerabilities in scada systems via fuzztesting.
Peach community 3 is a crossplatform fuzzer capable of performing both dumb and smart fuzzing. A fork and successor of the sulley fuzzing framework fuzzing python security. The leader in portable, affordable, pcbased datacom test equipment and custom decodes. Identifying vulnerabilities in scada systems via fuzz. After enumerating all those i will talk about the scada fuzzer and the framework that has been worked on and how that can be used to. Sulley not only has impressive data generation but has taken this a step further and includes many other important aspects a modern fuzzer should provide. Scada fuzzer and the framework that has been worked on and how that can be used to determine the flaws in the implementation of.
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